Carbureter.



C. B. HAYNES.

CARBURETER.

APPLICATION FILED IAN.29, I9I4.

Patented June 22, 1915.

2 SHEETS-SHEET I.

VII E N n 0 T T A 0\ 6 Z f. 4v

WITNESSES C. B. HAYNES.

CARBURETER.

APPLICATION FILED IAN.29, 1914.

Patented June 22, 191" 2 SHEETSSHEET 2.

.) I I I I l l III CLARENCE B. HAYNES, 0F CAB/IDEM, NEW l'ElEi, A SSliGNOlEt OF TWENTYTV7O AND ONE-HALF ONE-HUNDREDTHS TO CHARLES it.. RICHARBSON AND TEN NEHUN- DREDTHS T0 WILLIAM K, i3.v RGHARDSOIN, BOTH OF HADDONFIELD, NE'lf JERSEY,

AND TWENTY-TWO AND ONE-HALF 0NE-HUNDREDTHS TO MAX LIEVIERIGHT, 0l?- PHILADELPHIA, PENNSYLVANIA;

GARBURETERM intensi,

Specification of Letters Patent.

Patented. June 252, iiillii,

Application filed January 29, 19M. Serial ro. 815,145. y

To all whom it may conce/m v Be it known that I, CLARENCE B Harnn's, a citizen of the United States, residing at Camden, in the county of Camden, State of New Jersey, have invented a new and useful Carbureter, of which the following is a specification.

My invention consists of a carbureter for internal combustion engines in which means are provided for finely comminuting the liquid fuel and thoroughly mixing the same with moistened air.

it further consists of means for regulatin the feed of the liquid fuel into the ca bureter.

lt further consists of means for adjusting the comminuting and mixing devices. l

lt further consists of other novel features ofy construction, all as will be hereinaftery fully set forth.

rllhe annexed drawings and the following description set forth in detail one mechanical form embodying the invention, such detail construction being but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawings-Figure l represents a vertical section of my improved carbureter, taken on the line in Fig. 3. F ig. 2 represents a side view of said carbureter. Fig. 3 represents a top plan view of the carbureter.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings, the reference numeral l indicates the carbureter casing which communicates with the intake of the engine by a laterally and upwardly extending duct, 2,'in which a throttle-valve, 3, is preferablyvlocated. A laterally extending and curved chamber, 4, is secured to the lower lend of the carbureter chamber and has a bracket, 5, to which the lower head, 6, of a float-chamber, 7, is secured. Said chamber has an upper head, 8, and gaskets, 9 and 10, are arranged. in said heads and have the ends of a cylindrical wall, 1l, preferably of glass, bearing against them, the heads being secured together and clamping such Wall and gaskets by means of an axial screwbolt, l2, having a head, 13, bearing against a washer, 14, and passing through the center of the upper head and the chamber, and screwing into the center of the lower head. A float, 15,- is guided by an axial tube, 16, upon the screw-bolt to rise and fall within the float-chamber fuel within the same. A passage, l?, extends laterally from the bottom of the ioat-chamber, and communicates with the lower end of a tube, 18, having its upper end closed bya screw cap, 19, and having a perforated guide nut, 20, screwed in its upper end, with-- in whicha stem, 2l, of a needle-valve, 22, is gfuided.v Said needle-valve is adapted to t on a seat, 24, in a nipple, 25, to which a fuel-supply pipe 26, is connected. A helical spring, 27, is wrapped around the valvestem and bears against the guide-nut and a collar, 28, upon the stem, tending to force the valve on to its seat. A lever, 29, is ful crurned at about its middle upon a transk verse pin, 30, in the passage, and has aA forked end, 3l, straddling the valve-stem and bearing from below against the collar upon the valve-stem. The opposite end of said lever bears against the under side of the float l5, so that the weight of the latter will be counter-balanced by the spring on the valve-stem.

A bearing, 32, is formed within the chamber L and in axial alincment with the carburetor casing, and said chamber has an annular shoulder, 33, upon 'which the lower edge of said casing is seated, and an internal, annular, beveled seat, 34. A stem, 35, of a needle-valve, 36 is located in said bearing and has a screw-thread, 37, at its lower portion, engaging an internally threaded por-l tion, '38, of the bearing, and a cap, 39, is screwed upon a nipple, 40, upon the outside of the chamber 4 to close the bearing, and the lower end of the valve-stem has a handle, il, for turning it. A. channel, 42, extends from the lower end of the float-chamber into the bearing, and a screw-threaded portion, L13, of a tubular shank, 4,4, of a plug` 45, is secured in the upper end of the bearing and has a seat, 4G, in its lower end for the needlevalve. An enlarged chamber, .47, is formed in the extension of the needle-valve bearing, surrounding the shank of the plug and communicating with the tubular interior of the same through ports, 48.7, 'fhewplagis hei-fwith the level of theliquid f a narrow annular port. `The upper portion of the hood has a number of openings, 51, communicating with the carbureter chamber. A stem, 52, is secured to the top of the hood and is slidable in a neck, 53, in the lower end, of a cylinder, 54,' extending through the top of the carburheter chamber, and has a piston, 55, at its upper end slidable in said cylinder and having a spring, 56,

lcylinder, 62, having perforations, 63.

bearing against it and adjusted by means of a cap, 57, threaded upon the upper end of the cylinder and engaged by a lock, 58, which prevents it'from turning after adjustment. A dome-shaped screen, 59, is secured in the carbureter chamber above the dome, and may be composed of a plurality of foraminated screens, 60.

The laterally extending, curved chamber 4 has its outer end turned upward to form an' elbow, 61, into the upper internally screw-threaded end ofwhich is screwed a head, 64, is secured upon-the upper end'of said cylinderl and has a reservolr, 65, secured upon it, having an opening, 66, to

- which a pipe or other connection to a liquidsupply may be connected. A helix, 67, of felt or other absorbent material, is supported in the moistening chamber formed from the perforated-cylinder and the elbow, and has a helical core, GS, of wire or similarl material for supporting it and maintaining it in its shape. The lower end of said core is secured by a nut, 69, in the bottom of the moistening chamber, and lthe upper end of the absorbent helix tits tightly in a hole in the head of the moistening chamber and passes into the reservoir, where a nipple, 70, fits over such end and is held in position by a nut, 7l, secured upon the upper screwthreaded end, 72, of the core.- `While a helix is preferable on account of offering a large evaporating surface in proportion to the space it occupies, it is evident `that any other tortuous shape may be given to the -evaporating body.

ln practice, the fuel pipe is connected to the float-chamber and the duct 2 is connected to the intalie of the engine to which the device is applied. and suitable connection is made from the reservoir to a supply of water.

When the engine is started, suction will be created in the intake, and fuel will be drawn from the float-chamber and air will be drawn from the moistening chamber, passing up through the hood, where it will mix with the vaporized spray of fuel issuing through the outwardly flaring spraying slot 49 and pass through the perforations in the top of the hood. The `mixed fuel and air passes upward through the domed screen and through the duct and throttle-valve to the engine. Perfect mixture of fuel and air will take place by the thin annular and ilaring spray of fuel striking the inner sides of the hood and mixing 'with the air ascending through the hood and then passing out through the perforations in the same, whereupon such mixture is again mixed with air passing upward on the outside of the hood and fully comminuted and mixedA in the domed screen, The air passing in through the perforated walls of the moistening chamber will at all points within said chamber come in contact with the surface of the absorbent helix, which is saturated with water, so that the air will absorb a large proportion of moisture and produce a highly explosive mixture.

The proportion of fuel can be accurately adjusted by the needle float-valve, the needle-valve 36 for the flaring spray-nozzle and the tapering plug of said spray-nozzle.

The flaring hood will be raised against the pressure of the spring 5G by the suction from the engine, so that the air-supply is automatically gaged by the requirements of the engine, and the tension of the spring is adjusted .by its screw-cap.

The air-meistening device formsV the subject-matter of a separate application, sworn to by me on the 17th day of January, 1914, and forms no part of the present invention, as far as its particular construction is concerned,l

'llhe-iioat-chamber performs the ordinary functions of such a chamber, and does not materially diil`er in construction and operation from well-known iloat-chambers of that type.

The entire device is simple of construction and all parts are easy of access for cleaning and repair. The float-cup and moistening chamber are supported at diametrically opposite sides of the carbureting chamber, so that said .elements balance one another, and

the fuel and air inlets will be direct into and close to the carbureting chamber, so that there is slight liability of obstruction of passages and gumming from the fuel passing through long passages.

Other modes of applying the principle of my invention mvay be employed for the mode herein explained.` Change may therefore be made as regards the mechanism thus disclosed, provided the principles of construction set forth respectively, in the following claim are employed.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent, is 2- In a device of the character stated, a carbureter casing having :1 botom Opening and the Hout-chamba?, ano. an airmoiswbs' fuel-comminuting means Within it, a oa chambei" secured. in the outer uptmnew.

chamber sugported at one side of the carbuof said curved, dumb.

reter' cham er andhaving a channel con V V W 5 nected to said comminuting means, a Curved. CLAREL@ i' L M* duct having one uptumed. end Connected n50 Witnesses:

the b0ttoni-0pening of the carbureter cham- Nm ma bei' and extending laterally oppositeiy m C. D MGi/AE.

YNES. 

